So for this we will need to do two proportions. The first one will be [tex] \frac{6}{11} =\frac{12}{12+EG} [/tex]
Firstly, cross-multiply. Your equation should look like this: [tex] 72+6(EG)=132 [/tex]
Next, subtract 72 on each side to get [tex] 6(EG)=60 [/tex]
Lastly, divide 6 on each side, and then your answer should be [tex] EG=10 [/tex]
Nextly, your next proportion is gonna be [tex] \frac{11}{15} =\frac{22}{22+GC} [/tex]
You'll be repeating the similar steps as before, so I'll just go thru it:
[tex] 242+11(GC)=330\\ 11(GC)=88\\ GC=8 [/tex]
Now that we got all parts of the side, we just need to add them up:
[tex] 12+10+8=30 [/tex]
In short, the answer is D. 30 ft.
